Of the three main components of a s'more, only one is a natural-born American. Marshmallows date back to ancient Egypt (where they were made from the actual marsh mallow plant). Chocolate is of Mesoamerican origin. But Graham crackers were invented—or at least inspired—by a Connecticut Presbyterian minister, Rev. Sylvester Graham, in the 1820s. As far as anyone can tell, the ultimate campfire treat is one food that’s as American as apple pie—and even apple pie isn’t an original American creation.

Source: Smithsonian Magazine